'\" te
.\" Copyright (c) 2001, Sun Microsystems, Inc. All Rights Reserved.
.\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License").  You may not use this file except in compliance with the License.
.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.  See the License for the specific language governing permissions and limitations under the License.
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.TH REMOVABLE-MEDIA 9P "Jun 15, 2001"
.SH NAME
removable-media \- removable media device property
.SH DESCRIPTION
.sp
.LP
A device that supports removable media\(emsuch as CDROM, JAZZ, and ZIP
drives\(emand that supports power management and expects automatic mounting of
the device via the volume manager should export the boolean (zero length)
property \fBremovable-media\fR. This property enables the system to make the
power state of the device dependent on the power state of the frame buffer and
monitor. See the \fBpower.conf\fR(5) discussion of the
\fBdevice-dependency-property\fR entry for more information.
.sp
.LP
Devices that behave like removable devices (such as PC \fBATA\fR cards, where
the controller and media both are removed at the same time) should also export
this property.
.SH EXAMPLES
.LP
\fBExample 1 \fR\fBremovable-media\fR Entry
.sp
.LP
An example of a \fBremovable-media\fR entry from the \fB\&.conf\fR file of a
driver is shown below.

.sp
.in +2
.nf
# This entry keeps removable media from being powered down unless
# the console framebuffer and monitor are powered down
#
removable-media=1;
.fi
.in -2

.LP
\fBExample 2 \fRImplementation in \fBattach()\fR
.sp
.LP
Below is an example of how the entry above would be implemented in the
\fBattach\fR(9E) function of the driver.

.sp
.in +2
.nf
xxattach(dev_info_t *dip, ddi_attach_cmd_t cmd)
     {
     ...
          if (ddi_prop_create(DDI_DEV_T_NONE, dip, DDI_PROP_CANSLEEP,
              "removable-media", NULL, 0)) != DDI_PROP_SUCCESS)
               goto failed;
     ...
     }
.fi
.in -2

.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(7) for descriptions of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
_
Interface stability	Committed
.TE

.SH SEE ALSO
.sp
.LP
.BR pm (4D),
.BR power.conf (5),
.BR attach (9E),
.BR detach (9E),
.BR ddi_prop_create (9F)
.sp
.LP
\fIWriting Device Drivers\fR
